6*0 



APPENDIX. 





[No. IV 



TABLE VIII. 



An xAbstract of the Observations made on the Dip of the Magnetic Needle, between York Factory 





and Point Turnagain. 



Date 



1819 



Latitude 

 North 





Longitude 

 West 



Sept. 4 



26 



Oct 7 



Not, 24 



Dec. 1 



o / * 

 57 00 03 



54 57 4 



53 41 38 



/ / 



92 26 00 



94 56 30 



98 00 52 



53 56 40 



1820 



June 11 



29 



July 9 



14 



53 56 40 



102 16 31 



53 56 40 



55 26 45 



102 16 31 



102 16 31 



56 43 



107 52 45 



109 53 



58 42 38 



111 18 55 



Aug. 1 J 62 17 19 



11 



16 



30 



63 47 49 



64 15 17 



64 28 24 



1821 

 June 9 



10 



114 9 34 



113 46 35 



Amount of 

 Dip 



Difference 

 produced by 

 changing the 



Face of the 



O / // 



79 29 7 



80 37 50 



83 40 10 



83 9 45 



13 3 6 



83 12 40 



84 45 48 

 84 24 40 



84 5 25 



84 21 50 



85 9 30 

 85 5 40 



12 50 55 



17 48 03 

 19 17 40 



16 29 30 



17 43 20 

 6 39 40 

 9 21 00 



85 23 42 



113 2 39 



113 6 00 



64 28 24 



67 2 20 



21 



67 47 50 



31 67 19 23 



113 6 00 



86 38 02 



6 2 10 



6 49 57 



87 11 48 



87 20 35 



87 25 57 



116 28 00 



115 36 49 



Aug. 20 



68 18 50 



109 44 30 



87 3 13 



86 54 12 



87 28 12 



87 34 24 



88 3 27 



88 6 48 



88 54 57 



89 2 30 



7 4 3 



7 13 37 



6 44 54 



15 56 03 

 19 45 54 



16 39 24 ) 

 15 U 36$ 



6 28 54 

 9 21 12 



5 20 42 



109 25 D.R. r89 56 3 



>.r. c 



2\u\ I 



110 5Chr. (89 6 21 



42^ 



1 20J 



2 12 30 

 24 54 



Variation 

 East 



nstrument 





O / " 



o / ,/ 



11 3 40 



6 00 21 



3 45 20 



11 50 



7 39 00 



14 21 41 



Ther. 





Direction of Winds, 



and 

 State of Atmosphere 



Place of Observation 



Observer 



+43 



+56 



17 17 29 



17 17 29 



17 



+44 



+24 



In the room 



+15 



In thf* air 



+29 





ESE. moderate and 



cloudy 



SE. moderate, yery 



clear 



North, moderate and 



clear 



Marked 

 towards 



Needle 



25 15 48 



+68 



North, light breezes, 



clear 



North, light airs, 



York Factory 



Magnetic Island, 

 Knee Lake 



Norway House 



In a room at Cum 

 berland House 



In the air at C, House 



side of the needle) 

 the observer. • . ) 



inverted 



Cumberland House 



B.H.F 



F. 



F. 



F. 



H F. 



H. 



+62 



22 47 34 



33 35 55 



36 45 30 



+68 



+72 



+56 



36 50 47 



35 45 28 



36 15 



36 24 



37 24 



44 11 42 



40 25 52 



40 59 23 



44 15 46 



+77 



ENE. moderate, clear 



NE. fresh, cloudy 



East, light breezes, 



clear 



SE. light airs, very 



clear 



East, light airs, very 



clear 



Isle a la Crosse 



North side of Me thy e 

 Portage 



H. 



H 



+55 



+73 



South, light airs, 



clear 



NNW. light airs, 



clear 



Fort Chipewyan 



Fort Providence, N. 

 side of Slave Lake 



Upper Carp Lake 



Portage at the North 

 end of Grizzle Bear 

 Lake 



B.H.F 



B.H.F. 



B.H.F 



SE. light breezes, 

 stratified clouds 



Fort Enterprise 



Fort Enterprise 



+49 



Below the Rocky De- 

 file Rapid, Copper 



Mine River 



B.H.F 



F 



F. 



F. 



+63 



+33 



NNE. light b. foggy 



Mouth of the Copper j?. 



WSW. moderate b. 

 streaked clouds 



SW. fresh breezes 

 dark clouds. 



Mine River 



The first Cascade in 

 Hood's River 



Point Turnagain 



F. 



F 



